Ok, let's see...
-Disney WORLD
-Sea WORLD
-WORLD of Beer
-Your WORLD
So, that's roughly... 17 worlds in the world! I know, you only see 4, but that's just your imagination forgetting there's actually 17 of them.
many worlds
There are 159 worlds including the 4 dutch worlds
there are 16 worlds. 8 normal worlds and 8 special worlds
The Many Worlds of Andre Norton has 208 pages.
four worlds
Many Worlds Are Born Tonight was created in 1998.
The Many Worlds of Andre Norton was created in 1974.
Hunter of Worlds has 214 pages.
Wizards' Worlds has 500 pages.
Worlds of Weber has 609 pages.
Juggler of Worlds has 352 pages.
Of Worlds Beyond has 96 pages.